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Color coated galvanised iron sheets common quality problem analysis
三月 21, 2017
没有评论
CAMELSTEEL
1. Color Coated
Galvanised Iron Sheets
bad solvent resistance.
Characteristics : Butanone wipe lose the punctiform paint.
There are many causes:
(1) The baking temperature does not reach the requirement.
(2) The painting solidification meet some problems.
(3) Pretreatment is not tidy.
2. The impact fails.
Characteristics: After the inspection, the places stricked by the strapping will fall the paint.
There are many causes:
(1) Pretreatment is not well.
(2) The temperature when people solidify the paint is not reasonable.
3. Shrinkage.
Characteristics: The film is not level off and some place grinning.
There are many causes:
(1) The surface is not tidy.
(2) The primer cooling water is not tidy.
(3) The viscosity does not reach the production requirement.
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